CN114084352B - Pressure regulator for guiding air - Google Patents
Pressure regulator for guiding air Download PDFInfo
- Publication number
- CN114084352B CN114084352B CN202111366019.4A CN202111366019A CN114084352B CN 114084352 B CN114084352 B CN 114084352B CN 202111366019 A CN202111366019 A CN 202111366019A CN 114084352 B CN114084352 B CN 114084352B
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- Prior art keywords
- valve
- upper valve
- pressure regulator
- seat
- lower valve
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- 238000007789 sealing Methods 0.000 claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 16
- 239000010439 graphite Substances 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims description 85
- 230000001105 regulatory effect Effects 0.000 claims description 22
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000013585 weight reducing agent Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/02—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being pressurised
- B64D13/04—Automatic control of pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/06—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/06—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned
- B64D2013/0603—Environmental Control Systems
Abstract
The application provides a guiding air pressure regulator, which belongs to the technical field of aircraft environmental control systems, wherein an overpressure conversion valve of the guiding air pressure regulator comprises an adjusting screw sleeve, a spring seat, a back nut, a graphite bushing, an upper valve, a valve seat and a lower valve, wherein conical surface sealing is arranged between the upper valve and the valve seat, and spherical surface sealing is arranged between the lower valve and the valve seat; the graphite bushing is of a polygonal flattening structure, is sleeved on the outer side of the upper valve and is used for limiting the upper valve; the upper valve is provided with a threaded rod, an inner hole of the lower valve is threaded, the upper valve is in threaded connection with the lower valve, the tail end of the thread of the upper valve is of a flattening structure, and the tail end of the lower valve is of a thin-wall structure; when the valve is assembled, the upper valve is installed in the valve seat, the lower valve is screwed on the upper valve, the stroke of the upper valve is adjusted to a preset distance, and then the thin-wall structure of the lower valve is pinched and flattened to prevent loosening. The aircraft environment-friendly control system is simple in structure, small in product weight and capable of meeting the requirements of a host, and is used for an aircraft environment-friendly control system.
Description
Technical Field
The application relates to the technical field of aircraft environmental control systems, in particular to a pilot pressure regulator.
Background
The pilot pressure regulator is an important accessory in an aircraft environmental control system, and with the development of aviation technology, the reliability and the light weight requirements of the aircraft environmental control system on the pilot pressure regulator are more and more strict.
In the related art, the automatic closing function of the air guiding pressure regulator is realized by three components of a closing instruction mechanism (about 0.22 kg), a control device (about 0.55 kg) and a closing mechanism, and the air guiding pressure regulator has a complex structure and high product weight, does not meet the requirement of a host machine, and therefore, the structure of the air guiding pressure regulator needs to be optimized.
Disclosure of Invention
In order to solve the technical problem in the related art, the application provides a guiding air pressure regulator, the technical scheme is as follows:
there is provided a pilot pressure regulator comprising: the device comprises a shut-off mechanism, an overpressure conversion valve, a servo mechanism, a pressure regulating instruction mechanism and an adjusting mechanism.
The overpressure switching valve is fixed at a switching joint of the shutoff mechanism; the adjusting mechanism is fixedly connected with the flange surface of the shut-off mechanism; the pressure regulating instruction mechanism is fixed on the lug of the servo mechanism, and the servo mechanism is fixedly connected with the flange surface of the regulating mechanism.
The overpressure conversion valve comprises an adjusting screw sleeve, a spring seat, a back nut, a graphite bushing, an upper valve, a valve seat and a lower valve.
The adjusting screw sleeve is positioned at one end of the valve seat far away from the lower valve; the spring seat is positioned at one end of the graphite bushing, which is far away from the lower valve, and the spring is sleeved on the spring seat and is tightly pressed on the adjusting screw sleeve; the back nut is positioned on the valve seat and the compression adjusting screw sleeve; the upper valve and the valve seat are sealed by conical surfaces, and sealing belts are formed at the sealing positions of the valve seat and the upper valve; the lower valve is sealed with the valve seat in a spherical surface, and a sealing belt is formed at the sealing part of the valve seat and the lower valve; the graphite bushing is of a polygonal flattening structure, is sleeved on the outer side of the upper valve and is used for limiting the upper valve; the upper valve is provided with a threaded rod, an inner hole of the lower valve is threaded, the upper valve is in threaded connection with the lower valve, the tail end of the thread of the upper valve is of a flattening structure, and the tail end of the lower valve is of a thin-wall structure; when the valve is assembled, the upper valve is installed in the valve seat, the lower valve is screwed on the upper valve, the stroke of the upper valve is adjusted to a preset distance, and then the thin-wall structure of the lower valve is pinched and flattened to prevent loosening.
Wherein, graphite bush is 3 limit and cuts flat structure.
Wherein, the sealing part of the valve seat and the lower valve is formed with a sealing belt with the width of 0.05-0.1 mm.
Wherein the width of the sealing belt formed by the sealing part of the valve seat and the upper valve is 0.05-0.1 mm.
Wherein, the overpressure switching valve is in threaded connection with the switching joint of the shutoff mechanism.
The adjusting mechanism is in threaded connection with the flange surface of the closing mechanism.
The pressure regulating instruction mechanism is in threaded connection with the lug of the servo mechanism, and the servo mechanism is in threaded connection with the flange surface of the regulating mechanism.
Wherein the preset stroke of the upper valve in the overpressure conversion valve is 0.5-0.55 mm.
The pilot pressure regulator provided by the application replaces a shut-off instruction mechanism and a control device through an overpressure conversion valve. When the pressure regulator regulating mechanism fails, the pressure passing through the regulating mechanism exceeds the pre-pressure of the spring in the overpressure conversion valve, the overpressure conversion valve acts under the action of the pressure difference, the lower valve is closed, the access of the inlet pressure and the opening cavity of the shutoff mechanism is cut off, the upper valve is opened, the pressure of the opening cavity in the shutoff mechanism is discharged to the atmosphere, and the overpressure automatic closing function of the pressure regulator is realized. The improvement reduces the number of parts of the air guiding pressure regulator by 30, reduces the complexity of the product and improves the reliability of the product; about 0.67kg weight reduction, about 22% weight reduction; the weight reducing effect is obvious. Meanwhile, the local installation space of the product is reduced by 65-70 mm, and the installation space of the product is also greatly reduced, so that the product is convenient to be laid out and installed on an airplane.
Drawings
FIG. 1 is a schematic view of a prior art pilot pressure regulator;
FIG. 2 is a schematic diagram of a pilot pressure regulator prior to modification;
FIG. 3 is a schematic view of a pilot pressure regulator provided herein;
FIG. 4 is a schematic view of the overpressure switch valve provided in the present application;
fig. 5 is a schematic diagram of the principle of the pilot pressure regulator provided in the present application.
Detailed Description
The application is further described with reference to the drawings and examples below:
in the related art, the structure of the air guiding pressure regulator is shown in fig. 1, and the schematic diagram is shown in fig. 2:
the pilot pressure regulator includes: the device comprises a shut-off mechanism 1, a servo mechanism 3, a pressure regulating command mechanism 4, an adjusting mechanism 5, a shut-off command mechanism 6 and a control device 7. Wherein the automatic closing function is realized by the closing instruction mechanism 6, the control device 7 and the closing mechanism 1.
The automatic closing and opening principle of the pilot pressure regulator is as follows: when the product pressure regulating function fails, the product inlet pressure Pr increases, and the E cavity pressure passing through the regulating mechanism also increases until the regulated value of the turn-off command mechanism 6 is reached. In this case, the membrane 8 bends, opening the flow cross section, air under pressure enters the B chamber of the bellows 15 in the control device 7, the lower shutter 14 opens, and the G chamber pressure of the small piston 9 is vented to atmosphere. The small piston 9 moves upwards against the force of the spring 10 under the action of pressure difference, the upper valve 11 is opened, and the piston 16 of the shut-off mechanism 1 opens the cavity F and is connected with the atmospheric pressure P0; the flat valve 12 is closed, and the pipeline between the cavity F and the cavity E passing through the adjusting mechanism is cut off; the intermediate shutter 13 closes, shutting off the line between the piston closing chamber D and the product outlet Pc, as a result of which a pressure difference in the closing direction is created over the piston 16, under the action of which the piston 16 compresses the spring 17, thereby closing the main gas passage. If the inlet pressure Pr decreases, the diaphragm 8 moves downward to shut off the flow section of the shut-off command mechanism 6, the air in the B chamber of the bellows 15 is discharged to the atmosphere and the pressure decreases, and the lower shutter 14 is closed. The pressure in the chamber G of the piston 9 is equal to the inlet pressure. The upper shutter 11 is closed, the flat shutter 12 is opened, and the piston opening chamber F is communicated with the chamber E through the adjusting mechanism. The middle shutter 13 opens to connect the piston closing chamber D with the product outlet Pc, creating a pressure difference in the opening direction across the piston 16, the piston 16 opening to connect the main air flow passage.
The application provides an overpressure conversion valve, which adopts the overpressure conversion valve (weight is about 0.1 kg) to replace a shutoff instruction mechanism and a control device (weight is about 0.77 kg) to control the pressure of a shutoff mechanism to open a cavity, so that the automatic shutoff function of a product is realized.
As shown in fig. 3, the present application provides a pilot pressure regulator, including: the device comprises a shut-off mechanism 1, an overpressure conversion valve 2, a servo mechanism 3, a pressure regulating instruction mechanism 4 and an adjusting mechanism 5. Wherein the automatic closing function is realized by the overpressure switch flap 2 and the shut-off mechanism 1.
The overpressure switching valve 2 is fixed at a switching joint of the shutoff mechanism 1; the adjusting mechanism 5 is fixedly connected with the flange surface of the shut-off mechanism 1; the pressure regulating instruction mechanism 4 is fixed on an lug of the servo mechanism 3, and the servo mechanism 3 is fixedly connected with a flange surface of the regulating mechanism 5;
as shown in fig. 4, the excess pressure conversion flap 2 includes an adjustment screw 21, a spring 22, a spring seat 23, a back nut 24, a graphite bushing 25, an upper flap 26, a flap seat 27, and a lower flap 28.
The adjusting screw sleeve 21 is positioned at one end of the valve seat 27 far away from the lower valve 28; the spring seat 23 is positioned at one end of the graphite bushing 25 far away from the lower valve 28, and the spring 22 is sleeved on the spring seat 23 and is pressed on the adjusting screw sleeve 21; the back nut 24 is positioned on the valve seat 27 and is pressed on the adjusting screw sleeve 21; conical surface sealing is arranged between the upper valve 26 and the valve seat 27, and a sealing belt is formed at the sealing part of the valve seat 27 and the upper valve 26; the lower valve 28 and the valve seat 27 are sealed in a spherical surface, and a sealing belt is formed at the sealing part of the valve seat 27 and the lower valve 28; the graphite bushing 25 is of a polygonal flattening structure, and the graphite bushing 25 is sleeved on the outer side of the upper valve 26 and used for limiting the upper valve 26; the upper valve 26 is provided with a threaded rod, the inner hole of the lower valve 28 is threaded, the upper valve 26 is in threaded connection with the lower valve 28, the tail end of the thread of the upper valve 26 is of a flattening structure, and the tail end of the lower valve 28 is of a thin-wall structure; when assembling, the upper valve 28 is installed in the valve seat 27, then the lower valve 28 is screwed on the upper valve 26, the stroke of the upper valve 26 is adjusted to a preset distance, and then the thin-wall structure of the lower valve 28 is pinched to prevent loosening. Wherein the preset distance is 0.5-0.55 mm. The function is to ensure smooth air intake and exhaust of the opening cavity of the piston 16 of the shut-off mechanism 1.
The graphite bushing 25 is of a 3-edge flattening structure and is used for guaranteeing smooth exhaust of an opening cavity of the piston 16 of the shut-off mechanism 1.
Wherein, the sealing part of the valve seat 27 and the lower valve 28 is formed with a sealing belt with the width of 0.05-0.1 mm, when the lower valve 28 is closed, the sealing performance of the lower valve 28 is ensured, and the inlet pressure Pr is prevented from entering the opening cavity of the piston 16 of the shutoff mechanism 1.
Wherein, the width of the sealing belt formed by the sealing part of the valve seat 27 and the upper valve 26 is 0.05-0.1 mm, when the upper valve 26 is closed, the sealing performance of the upper valve 26 is ensured, and the pressure of the closed cavity of the piston 16 of the shutoff mechanism 1 is prevented from being discharged into the atmosphere.
Wherein the overpressure switching valve 2 is in threaded connection with the switching joint of the shut-off mechanism 1.
Wherein the adjusting mechanism 5 is in threaded connection with the flange surface of the shut-off mechanism 1.
Wherein, pressure regulating instruction mechanism 4 and servo 3's lug screw thread, servo 3 and adjustment mechanism 5's flange face threaded connection.
Referring to fig. 5, the automatic closing and opening principle of the pilot pressure regulator provided in the present application is as follows:
when the product pressure regulating function fails, the product inlet pressure increases, and the pressure of the E cavity passing through the regulating mechanism 5 also increases until exceeding the pretightening force of the spring 22 in the overpressure converting valve 2, in which case the lower valve 28 is closed, and the piston 16 opens the passages of the F cavity and the E cavity; the upper valve 26 is opened to connect the F cavity with the atmosphere, and the pressure of the F cavity is the atmospheric pressure; the pressure of the closed cavity D cavity of the piston 16 is communicated with the pressure of the E cavity through the sizing hole 18, the pressure of the D cavity is higher than the pressure of the F cavity, the piston 16 compresses the spring 17 under the action of pressure difference between the D cavity and the F cavity, and the main airflow passage is closed. The pressure of the product inlet is reduced, the pressure of the E cavity is also reduced until the pressure is lower than the pretightening force of the spring 22 in the overpressure conversion valve 2, the lower valve 28 is opened to connect the passage of the F cavity and the E cavity, the upper valve 26 is closed to cut off the passage of the F cavity and the atmospheric pressure, and the pressure of the F cavity is the pressure of the E cavity at the moment. Because of the orifice 19, the cavity D pressure is slightly lower than the cavity E pressure, and the piston 16 opens the main air flow path under the combined force of the cavity F, cavity D pressure difference and the restoring force of the spring 17.
The utility model provides a draw air pressure regulator replaces shutoff command mechanism, controlling means through the superpressure conversion valve, when draw air pressure regulator adjustment mechanism breaks down, and through the pre-pressure of the spring in the superpressure conversion valve of adjustment mechanism's pressure excess, the superpressure conversion valve acts under the pressure differential effect, and lower valve is closed, cuts off the passageway in entry pressure and shutoff mechanism opening chamber, and upper valve is opened, in the pressure of opening the chamber in the shutoff mechanism was discharged to the atmosphere, has realized draw air pressure regulator's superpressure self-closing function. The improvement reduces the number of parts of the air guiding pressure regulator by 30, reduces the complexity of the product and improves the reliability of the product; about 0.67kg weight reduction, about 22% weight reduction; the weight reducing effect is obvious. Meanwhile, the local installation space of the product is reduced by 65-70 mm, and the installation space of the product is also greatly reduced, so that the product is convenient to be laid out and installed on an airplane.
The foregoing examples are provided for clarity of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art.
Claims (8)
1. A pilot pressure regulator, comprising: the device comprises a shut-off mechanism (1), an overpressure conversion valve (2), a servo mechanism (3), a pressure regulating instruction mechanism (4) and an adjusting mechanism (5);
the overpressure switching valve (2) is fixed at a switching joint of the shutoff mechanism (1); the adjusting mechanism (5) is fixedly connected with the flange surface of the shut-off mechanism (1); the pressure regulating instruction mechanism (4) is fixed on an lug of the servo mechanism (3), and the servo mechanism (3) is fixedly connected with a flange surface of the regulating mechanism (5);
the overpressure conversion valve (2) comprises an adjusting screw sleeve (21), a spring (22), a spring seat (23), a back nut (24), a graphite bushing (25), an upper valve (26), a valve seat (27) and a lower valve (28);
the adjusting screw sleeve (21) is positioned at one end of the valve seat (27) far away from the lower valve (28); the spring seat (23) is positioned at one end of the graphite bushing (25) far away from the lower valve (28), and the spring (22) is sleeved on the spring seat (23) and is pressed on the adjusting screw sleeve (21); the back nut (24) is positioned on the valve seat (27) and is tightly pressed on the adjusting screw sleeve (21); the upper valve (26) and the valve seat (27) are sealed by conical surfaces, and a sealing belt is formed at the sealing part of the valve seat (27) and the upper valve (26); spherical sealing is arranged between the lower valve (28) and the valve seat (27), and a sealing belt is formed at the sealing part of the valve seat (27) and the lower valve (28); the graphite bushing (25) is of a polygonal flattening structure, and the graphite bushing (25) is sleeved on the outer side of the upper valve (26) and used for limiting the upper valve (26); the upper valve (26) is provided with a threaded rod, an inner hole of the lower valve (28) is threaded, the upper valve (26) is in threaded connection with the lower valve (28), the tail end of the thread of the upper valve (26) is of a flat cutting structure, and the tail end of the lower valve (28) is of a thin-wall structure; when the anti-loosening device is assembled, the upper valve (26) is installed in the valve seat (27), the lower valve (28) is screwed on the upper valve (26), the stroke of the upper valve (26) is adjusted to a preset distance, and then the thin-wall structure of the lower valve (28) is pinched to prevent loosening.
2. The pilot pressure regulator according to claim 1, wherein,
the graphite lining (25) is of a 3-edge flattening structure.
3. The pilot pressure regulator according to claim 1, wherein,
the sealing part of the valve seat (27) and the lower valve (28) is provided with a sealing belt with the width of 0.05-0.1 mm.
4. The pilot pressure regulator according to claim 1, wherein,
the width of the sealing belt formed by the sealing part of the valve seat (27) and the upper valve (26) is 0.05-0.1 mm.
5. The pilot pressure regulator according to claim 1, wherein,
the overpressure switching valve (2) is in threaded connection with a switching joint of the shutoff mechanism (1).
6. The pilot pressure regulator according to claim 1, wherein,
the adjusting mechanism (5) is in threaded connection with the flange surface of the shut-off mechanism (1).
7. The pilot pressure regulator according to claim 1, wherein,
the pressure regulating instruction mechanism (4) is in threaded connection with lugs of the servo mechanism (3), and the servo mechanism (3) is in threaded connection with a flange surface of the regulating mechanism (5).
8. The pilot pressure regulator according to claim 1, wherein,
the preset travel of the upper valve (26) of the overpressure conversion valve (2) is 0.5-0.55 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111366019.4A CN114084352B (en) | 2021-11-18 | 2021-11-18 | Pressure regulator for guiding air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111366019.4A CN114084352B (en) | 2021-11-18 | 2021-11-18 | Pressure regulator for guiding air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114084352A CN114084352A (en) | 2022-02-25 |
| CN114084352B true CN114084352B (en) | 2023-08-08 |
Family
ID=80302067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111366019.4A Active CN114084352B (en) | 2021-11-18 | 2021-11-18 | Pressure regulator for guiding air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114084352B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204961937U (en) * | 2015-07-31 | 2016-01-13 | 新乡航空工业(集团)有限公司 | Pressure adjustment turn -offs valve pressure regulating device |
| CN106762156A (en) * | 2016-12-21 | 2017-05-31 | 长春航空液压控制有限公司 | Engine fuel turns off valve assembly |
| DE102016209077A1 (en) * | 2016-05-25 | 2017-11-30 | Kutzner + Weber Gmbh | Regulating flap adjusting mechanism for a draft regulator and a draft regulator equipped therewith |
| CN110985213A (en) * | 2019-12-11 | 2020-04-10 | 中国航空工业集团公司沈阳飞机设计研究所 | Differential pressure type self-adjusting valve |
| CN111038713A (en) * | 2019-12-23 | 2020-04-21 | 中国航空工业集团公司沈阳飞机设计研究所 | Pressure regulating valve with constant pressure difference type parallel structure and regulating method |
| CN111895134A (en) * | 2019-12-20 | 2020-11-06 | 中国航发长春控制科技有限公司 | Valve assembly integrating parking, shutoff and minimum pressure valve functions |
| CN113107682A (en) * | 2021-04-27 | 2021-07-13 | 中国航发沈阳发动机研究所 | Low-resistance air pressure altitude valve for aero-engine lubricating oil system |
-
2021
- 2021-11-18 CN CN202111366019.4A patent/CN114084352B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204961937U (en) * | 2015-07-31 | 2016-01-13 | 新乡航空工业(集团)有限公司 | Pressure adjustment turn -offs valve pressure regulating device |
| DE102016209077A1 (en) * | 2016-05-25 | 2017-11-30 | Kutzner + Weber Gmbh | Regulating flap adjusting mechanism for a draft regulator and a draft regulator equipped therewith |
| CN106762156A (en) * | 2016-12-21 | 2017-05-31 | 长春航空液压控制有限公司 | Engine fuel turns off valve assembly |
| CN110985213A (en) * | 2019-12-11 | 2020-04-10 | 中国航空工业集团公司沈阳飞机设计研究所 | Differential pressure type self-adjusting valve |
| CN111895134A (en) * | 2019-12-20 | 2020-11-06 | 中国航发长春控制科技有限公司 | Valve assembly integrating parking, shutoff and minimum pressure valve functions |
| CN111038713A (en) * | 2019-12-23 | 2020-04-21 | 中国航空工业集团公司沈阳飞机设计研究所 | Pressure regulating valve with constant pressure difference type parallel structure and regulating method |
| CN113107682A (en) * | 2021-04-27 | 2021-07-13 | 中国航发沈阳发动机研究所 | Low-resistance air pressure altitude valve for aero-engine lubricating oil system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114084352A (en) | 2022-02-25 |
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